Video: Amy Schumer & Bill Hader Tell Us Who Cracked Them Up On The ‘Trainwreck’ Set

Trainwreck hits cinemas this week.

Brand new comedy flick Trainwreck, written and starring the hilarious Amy Schumer, has just hit cinemas and sees the whos-whos of current LOL-makers, such as Vanessa Bayer, John Glazer and Randall Park joining the likes of Bill Hader in one of the funniest movies of the year.

With such an obscene amount of funny people on set, and a whole heap of ad-libbing and improv, we wanted to know what it was like and who was the hardest to keep a straight face to, so we hit up Amy and Bill at the Australian red carpet premiere of Trainwreck to find out.